Hi, I'm dentistry student, and hobbyist knifemaker from Poland. Few months ago I found boosted boards on IG and decided that electric longboard is my next must-have thing, doing reaserch I found ES forum and I've been reading it for a while now
In june I ordered all necessary components and the adventure begun. I wanted to keep this built as much DIY as possible, in my workshop I have small manual mill with rotary table, small lathe, and knifemakers best friend- belt grinder. I sketched motor mounts in autocad, and milled them out of aluminium, and motor-mounting plates out of 3mm stainless steel (heat-threated after machining). Drive wheel hubs were turned by me out of industrial grade pulleys so it required a little bit of turning. I also made mosfet-based power-switch (theoretically capable of 200A peak). Battery pack was soldered using 8AWG wires, and the "power stripes" glued (I did not wanted to mill the deck) below the deck are cut out of 1mm thick copper sheet and 10mm wide, so generally it's a little bit of overkill compared to what I see here mostly. The most characteristic for boosted are beautiful enclousures, my initial idea was to make them out of kydex I use for knife/gun holsters, but then decided to use carbon fiber, after second, non satisfying attempt (and lot of wasted money) I returned back to kydex. I modeled enclousures positives out of wood and car putty, then gave them to be painted (in order to make fine molds). The controler is my only issue right now, I need to stabilize connection between 2 arduino nano's and NRF24l01, I'll get rid of onboard antennas and make my own. The controler visible in my first photo got fried reciever due to APS faulty BEC (replaced by Bruno), then I decided to use nunchuck based solution. Used erwincoumans code and instructions he posted on forum (thanks!).
When my longboard was still in construction phase okp posted build thread with similiar goal, I was curious how will his board look, now all of You have opportunity to compare. All right so now lets move on to the technical data:
Motors are NTM 50-60 270 KV, geared at 2/1
ESC is APS 120A dual
Battery pack is 10000 mAh 7S2P (5000 mAh per cell)
Deck is Vanguard flex 3, orangatang kegel wheels, caliber trucks
Weight is about 7 kg
For now I reached 45 km/h, but there was some power left (I calculated for about 55 km/h)
During testing I rode 12 km consuming 3500 mAh, (calm commuting).
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